Ch 4 - quick check

Question 1

REWRITE ANSWER –
What is the difference between simple and stratified epithelial tissue? Between squamous and cuboidal epithelial tissue?

Answer 1

Simple is a single layer of cells of the same shape, whereas stratified has many layers of cells and is named for the shape of the cells in the outer layer. Squamous epithelial tissue contains cells that are flat and scalelike. Cuboidal epithelial tissue contains cells that are higher than they are wide.

Question 2

Which main tissue type of the body is mostly matrix?

Answer 2

Connective

Question 3

what are the primary forms of connective tissue?

Answer 3

a. Fibrous (connective tissue proper)
b. Bone
c. Cartilage
d. Blood
e. Hematopoietic tissue

Question 4

what are the 3 types of muscle tissue?

Answer 4

skeletal
cardiac
smooth

Question 5

REWRITE ANSWER –
what is the structure and function of skeletal muscle tissue?

Answer 5

Also known as striated muscle because it is characterized by many cross striations and many nuclei that are visible under the microscope. It is voluntary muscle because it is willed, or in other words, voluntary control of skeletal muscle contractions is possible. Skeletal muscle primarily maintains our posture and the movement of bones.

Question 6

REWRITE ANSWER –
what is the structure and function of cardiac muscle tissue?

Answer 6

Also striated but is involuntary. It has branching fibers with faint striations. It makes up the wall of the heart and is responsible for the muscular contractions of the heart in cooperation with the nervous system.

Question 7

REWRITE ANSWER –
what is the structure and function of smooth muscle tissue?

Answer 7

Non-striated and is sometimes referred to as visceral because it makes up the walls of the tubular viscera of the digestive, respiratory, and genitourinary tracts. It is involuntary and appears smooth under the microscope with threadlike cells and a single nucleus for each cell. It moves substances along the digestive, respiratory, and genitourinary tracts; changes the diameter of vessels in the circulatory and lymphatic systems; and moves substances along ducts.

Question 8

what are the two main types of cells found in nervous tissues? what are their functions?

Answer 8

1. neurons - conducting units: two types of processes: axon & dendrite
2. glia (neuroglia) - supportive and connecting cells

Question 9

what are the three structural components of a neuron?

Answer 9

1. cell body
2. axon that transmits a nerve impulse away from the cell body
3. one or more dendrites that carry impulses toward the cell body.

Question 10

what are the three primary types of cartilage?

Answer 10

a. Hyaline cartilage
b. Fibrocartilage
c. Elastic cartilage